Nope nothing missing in that area, i'm stumped, i don't have any kind of shop manual so i can't check, thanks for trying man. could this be some kinda power wire? i don't wanna take a chance putting power to it until i can figure out what it is, car is a 91 teg, with a b18c obd1 swap, using the stock ls harness, rywire conersion harness. p72 ecu. any help people would be great.